 | Bonev, Ivan K., Kerestedjian, Thomas, Atanassova, Radostina, Andrew, Colin J. (2002) Morphogenesis and composition of native gold in the Chelopech volcanic-hosted Au–Cu epithermal deposit, Srednogorie zone, Bulgaria. Mineralium Deposita, 37 (6) 614-629 doi:10.1007/s00126-002-0273-8 | Journal (article/letter/editorial) | | gold in the Chelopech volcanic-hosted Au–Cu epithermal deposit, Srednogorie zone, Bulgaria Received: 18...ores of the Chelopech high-sulphidation volcanic-hosted epithermal Au–Cu deposit (Bulgaria). The ore consists...(950) and a mean composition of 94.1 wt% Au, 5.27 wt% Ag, 0.53 wt% Cu and 0.10 wt% Fe. Gold grains show variable...Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria E-mail: bonev@geology.bas.bg C.J. Andrew Navan...Navan Resources plc, Navan, Ireland Keywords Chelopech Æ Epithermal Æ Gold Æ Morphology Æ Srednogorie Introduction |  | | Journal (article/letter/editorial) | | Factors Controlling Pd and Pt Potential in Porphyry Cu–Au Deposits: Evidence from the Balkan Peninsula Demetrios...Department of Geology, University of Sofia, Sofia 1504, Bulgaria; E-Mail: dobretenov@adiss-bg.com * Author...March 2014 Abstract: Porphyry Cu–Au–Pd±Pt deposits are significant Au resources, but their Pd and Pt...still unknown. Elevated Pd, Pt (hundreds of ppb) and Au contents are associated with typical stockwork m...certain porphyry deposits. Unexpected high grade Cu–(Pd+Pt) (up to 6 ppm) mineralization with high Pd/Pt |  | | Journal (article/letter/editorial) | | petrography of the Elatsite porphyry copper deposit, Bulgaria Received: 12 October 2000 / Accepted: 30 October...tetrahedrite– tennantite, clausthalite–galena, gold–electrum and merenskyite–moncheite. Precious-metal contents...contents are relatively high throughout the deposit but Au, Pd and Pt are concentrated more strongly in the...assemblage. Average grades of Au, Ag, Pd and Pt calculated for the 0.33% Cu ore body are 0.96, 0.19, 0.007...Analyses of flotation concentrates revealed 25.6% Cu, and Ag, Au, Pd and Pt contents of 33.0, 13.6, 0.72 and |  | | Journal (article/letter/editorial) | | British Columbia V6C 2B5, Canada Abstract Major Au and Cu deposits in the Western Tethyan magmatic belt...magmatism. The Cretaceous deposits are dominantly Cu-Au porphyry, high-sulfidation epithermal, and volcanic...massive sulfide deposits, whereas in the Cenozoic Cu is significant only in porphyry systems. However...approximately three times greater total Au endowment (for Au deposits >0.5 million ounces), and also...porphyry Au-Cu and Au-only deposits, high-, intermediate-, and low-sulfidation epithermal Au systems, |  | | Report (volume) | | Panagyurishte ore district, Srednogorie zone, Bulgaria: U-Pb zircon geochronology and isotope-geochemical...base-precious metal ore district, eastern Rhodopes, Bulgaria 137 KROHE, A. & MPOSKOS, E. Multiple generations...sequence at Ssesvatn, South Norway: Re-Os dating of Cu-Mo mineral occurrences 319 RAJAVUORI, L. & KRIEGSMAN...the time of formation of the Elatsite porphyry Cu-Au deposit to demonstrate that the high-temperature...Madjarovo volcanic complex and ore district in Bulgaria began at 32.7 Ma and finished by 32.2 Ma, at which |  | | Book | | BASE-METALDOMINANT 8. Sudbury Cu-(Ni)-PGE Systems: Refining the Classification Using McCreedy West Mine and Podolsky Project...Dyke, Zimbabwe - Case Study of the Hartley Platinum Mine A.H. Wilson, R.T. Brown 409-429 20. The Platinova...Andersen, C.K. Brooks 431-455 21. Polymetallic PGE-Au Mineralization of the Sukhoi Log Deposit, Russia...Russia V.V. Distler, M.A. Yudovskaya 457-485 22. Ni–Cu–Cr–PGE Mineralization Types: Distribution and Classification...Compositions Within-Reef Fractionation of the PGE Cu/Pd values SUMMARY 57 57 57 59 64 65 66 66 67 67 |
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